- A
All three routes are installed in the routing table of R1.
Why wrong: The output shows received routes, not necessarily installed routes. The '>' indicates best path among received from this neighbor, but not that it is in the routing table.
- B
R1 has received 3 prefixes from neighbor 10.0.1.2.
The command shows all routes received from the neighbor, and the total is 3 prefixes.
- C
R1 is advertising these three routes to neighbor 10.0.1.2.
Why wrong: This command shows received routes, not advertised routes. To see advertised routes, use 'advertised-routes'.
- D
The route 10.10.10.0/24 has a weight of 0, meaning it is not preferred.
Why wrong: Weight 0 is default. The '>' indicates it is the best path from this neighbor, but weight is not the sole determinant.
350-401 BGP Practice Question
This 350-401 practice question tests your understanding of bgp. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A network engineer runs the following command on Router R1:
R1# show bgp ipv4 unicast neighbors 10.0.1.2 received-routes
Network Next Hop Metric LocPrf Weight Path *> 192.168.1.0/24 10.0.1.2 0 100 0 65050 i *> 192.168.2.0/24 10.0.1.2 0 100 0 65050 i *> 10.10.10.0/24 10.0.1.2 0 100 0 65050 65100 i
Total number of prefixes 3
Based on this output, what can be concluded?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
R1 has received 3 prefixes from neighbor 10.0.1.2.
The command `show bgp ipv4 unicast neighbors 10.0.1.2 received-routes` displays all BGP routes that have been received from the specified neighbor, regardless of whether they are installed in the routing table. The output shows three prefixes, confirming that R1 has received exactly three routes from neighbor 10.0.1.2. The asterisk (*) and greater-than (>) symbols indicate the route is valid and best, but this does not guarantee installation in the routing table if a better administrative distance route exists.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
All three routes are installed in the routing table of R1.
Why it's wrong here
The output shows received routes, not necessarily installed routes. The '>' indicates best path among received from this neighbor, but not that it is in the routing table.
- ✓
R1 has received 3 prefixes from neighbor 10.0.1.2.
Why this is correct
The command shows all routes received from the neighbor, and the total is 3 prefixes.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
R1 is advertising these three routes to neighbor 10.0.1.2.
Why it's wrong here
This command shows received routes, not advertised routes. To see advertised routes, use 'advertised-routes'.
- ✗
The route 10.10.10.0/24 has a weight of 0, meaning it is not preferred.
Why it's wrong here
Weight 0 is default. The '>' indicates it is the best path from this neighbor, but weight is not the sole determinant.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between `received-routes`, `routes`, and `advertised-routes` in BGP show commands, and the trap here is that candidates assume the asterisk and greater-than symbols guarantee the route is in the routing table, when they only indicate BGP best-path selection within the BGP table.
Trap categories for this question
Command / output trap
The output shows received routes, not necessarily installed routes. The '>' indicates best path among received from this neighbor, but not that it is in the routing table.
Detailed technical explanation
How to think about this question
The `received-routes` keyword displays all routes received from a neighbor before any inbound policy (route-map, filter-list) is applied, which is useful for troubleshooting prefix filtering. In contrast, the `routes` keyword shows only the routes that pass inbound filters and are stored in the BGP table. A real-world scenario is verifying that a service provider is sending all expected prefixes, even if some are filtered out by inbound policy, to diagnose missing routes.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A network engineer at a university connects two campus buildings via a fibre link. Both routers run OSPF, but no adjacency forms — even though both routers can ping each other. The engineer finds one router is in area 0 and the other in area 1. OSPF adjacency requires matching area numbers, hello/dead timers, and network type. IP reachability alone is not enough.
What to study next
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FAQ
Questions learners often ask
What does this 350-401 question test?
BGP — This question tests BGP — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: R1 has received 3 prefixes from neighbor 10.0.1.2. — The command `show bgp ipv4 unicast neighbors 10.0.1.2 received-routes` displays all BGP routes that have been received from the specified neighbor, regardless of whether they are installed in the routing table. The output shows three prefixes, confirming that R1 has received exactly three routes from neighbor 10.0.1.2. The asterisk (*) and greater-than (>) symbols indicate the route is valid and best, but this does not guarantee installation in the routing table if a better administrative distance route exists.
What should I do if I get this 350-401 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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